Dale,Is the K8 hard on all tires or is this the first you've had a bad experience?
The K8 is, admittedly, fairly hard on the rear tire, but to be honest, a disciplined throttle hand can mitigate that considerably. I had the stock Bridgestone BT-015 that wore away at the Cal24, but that was just me trying to stretch out my tires a bit too far.... the BT-015 just melts away fast regardless of riding conditions.
This latest Dunlop failure was the rider trying to force a tire to work under conditions it is ill-suited for. I had *just* checked the rear tire condition at the previous gas stop, and I was only approaching the wear bar in the center only.
Apparently, however, road surface temps above 125F, coupled with busting down the road at mega-speeds for 12 continuous hours, all this makes the rear Dunlop Qualifier unhappy. :blink:
Next year, I'll mount up Avon Storms for this event... I can get a solid 4500 miles out of them, even under harsh riding environments.
With the back end fully loaded, have you ever over compnesated by raising the rear ride height and/or dropping the front to try and distribute a little bit of that weight forward?
No, because even when loaded down will a full bag of fuel, there is only about 45 lbs of weight on the pillion area.... less than half the weight of a passenger. However, I did jack up the rear pre-load to obtain the correct sag. No altering fork height as I did not want to impact the basic frame geometry.
What pressures (cold) were you running?
When running a hard-core Endurance rally in these particular conditions, the tires are kept at their max cold pressure of 42 psi.